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@article{743404,
author = {Vagovič, P. and Korytár, D. and Mikulík, Petr and Ferrari, C.},
article_number = {2},
keywords = {X-ray monochromator; High resolution; In-line optics; Spectral-angular function; Vertical dispersion},
language = {eng},
issn = {0168-583X},
journal = {Nuclear Instruments and Methods in Physics Research Section B},
title = {On the design of a monolithic 4-bounce high resolution X-ray monochromator},
url = {http://www.sci.muni.cz/~mikulik/Publications.html#VagovicKorytarMikulikF-nimb-2007},
volume = {265},
year = {2007}
}
TY - JOUR
ID - 743404
AU - Vagovič, P. - Korytár, D. - Mikulík, Petr - Ferrari, C.
PY - 2007
TI - On the design of a monolithic 4-bounce high resolution X-ray monochromator
JF - Nuclear Instruments and Methods in Physics Research Section B
VL - 265
IS - 2
SP - 599-604
EP - 599-604
PB - ELSEVIER (NORTH-HOLLAND)
SN - 0168583X
KW - X-ray monochromator
KW - High resolution
KW - In-line optics
KW - Spectral-angular function
KW - Vertical dispersion
UR - http://www.sci.muni.cz/~mikulik/Publications.html#VagovicKorytarMikulikF-nimb-2007
N2 - A monolithic monochromator (+n, -n, -m, +m) made of a single block of Ge crystal designed for CoKalpha1 radiation was developed and tested numerically and experimentally by means of X-ray diffraction. The advantage of monolithic devices is their mechanical stability and the alignment of such optics is much easier than with polylithic optics, but the development of these devices is rather demanding. The presented monochromator belongs to a group of coplanar in-line devices, which means that the input beam is parallel with the output beam. For the estimation of the spectral and angular properties of a diffracted beam of this monochromator (such as bandpass width, output divergence and input acceptance) we used a numerical approach which we call spectral-angular function. It takes into account both the vertical and the horizontal divergence of the input radiation and uses two-beam X-ray dynamical theory of diffraction. Experimentally, the monochromator was tested by means of X-ray diffraction (synchrotron radiation testing) and the results from this characterization are presented. The influence of the vertical divergence on the spectral distribution of the diffracted beam is discussed and compared with previously published analytical results.
ER -
VAGOVIČ, P., D. KORYTÁR, Petr MIKULÍK a C. FERRARI. On the design of a monolithic 4-bounce high resolution X-ray monochromator. \textit{Nuclear Instruments and Methods in Physics Research Section B}. ELSEVIER (NORTH-HOLLAND), 2007, roč.~265, č.~2, s.~599-604. ISSN~0168-583X.
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